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Leptochiton (plant)

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Genus of plant This article is about the genus of plants Leptochiton Sealy. For the genus of polyplacophoran molluscs, see Leptochiton (chiton).

Leptochiton
Temporal range: 24.46 –0 Ma PreꞒ Ꞓ O S D C P T J K Pg N Late Oligocene – Recent
Leptochiton quitoensis
Scientific classification Edit this classification
Kingdom: Plantae
Clade: Tracheophytes
Clade: Angiosperms
Clade: Monocots
Order: Asparagales
Family: Amaryllidaceae
Subfamily: Amaryllidoideae
Tribe: Hymenocallideae
Genus: Leptochiton
Sealy
Type species
Leptochiton quitoensis
(Herb.) Sealy
Leptochiton is native to Ecuador and Peru

Leptochiton is a genus of South American plants in the Amaryllis family.

There are 2 known species, native to Ecuador and Peru:

Description

Leptochiton quitoensis (Herb.) Sealy bulb with scale bar (3 cm)

Generative characteristics

Leptochiton has phytomelanous seeds, which is unique among the tribe Hymenocallideae.

Cytology

The diploid chromosome count is 2n = 24 or 2n = 34.

Phylogeny

It is closely related to Ismene, to which it shared a common ancestor 26.14 million years ago. It is the sister group to Hymenocallis, from which it separated 24.46 million years ago.

Hymenocallideae

Hymenocallis

Leptochiton

Ismene

References

  1. ^ Meerow, A. W., Gardner, E. M., & Nakamura, K. (2020). "Phylogenomics of the Andean tetraploid clade of the American Amaryllidaceae (subfamily Amaryllidoideae): unlocking a polyploid generic radiation abetted by continental geodynamics." Frontiers in Plant Science, 11, 582422.
  2. illustration from Baker, John Gilbert. 1878. Curtis's Botanical Magazine 104: plate 6397, as Ismene tenuifolia
  3. "Leptochiton Sealy". Plants of the World Online. Royal Botanic Gardens, Kew. Retrieved 30 July 2023.
  4. Sealy, Joseph Robert. 1937. Botanical Magazine 160: plate 9491
  5. Jørgensen, P. M., M. H. Nee & S. G. Beck. (eds.) 2014. Catálogo de las plantas vasculares de Bolivia, Monographs in systematic botany from the Missouri Botanical Garden 127(1–2): i–viii, 1–1744.
  6. Kew World Checklist of Selected Plant Families
  7. ^ Meerow, A. W., Guy, C. L., Li, Q. B., & Yang, S. L. (2000). "Phylogeny of the American Amaryllidaceae based on nrDNA ITS sequences." Systematic Botany, 708-726.
Taxon identifiers
Leptochiton
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